Wow. I haven’t even been gone a year and already Boston comedy is declared dead?!
Seriously, though. Your post is a bit naive and misguided (which probably is because of the naivete). Remington’s (The Vault) is a venue, yes, and comedians do go there. But you need to get out more often, and maybe, oh, I don’t know, visit The Comedy Studio in Harvard Square or the Comedy Connection. Or merely turn on the TV in June. This year’s Live At Gotham showcase on Comedy Central features three stand-up comedians who live in the Boston area, as well as at least three others who got their starts in Boston.
Boston/Cambridge remains a great breeding ground for comedy. It has been that way for the past three decades (rent/buy the DVD of “When Stand Up Stood Out” to see how it got rolling in the early 1980s). That historical precedent has reinforced a built-in nurturing effect for young, new comedians to experiment and get their footing before they move off to New York City or Los Angeles, which they tend to do in waves every couple of years. There are still plenty of young comedians along with cagey veteran stand-ups, improv and sketch groups performing at places such as Improv Boston and Improv Asylum, and a number of venues exist out in the suburbs where other, older veteran stand-up fixtures from the 1980s continue to headline.
So, to answer your question: No. Boston comedy is not dead.